CN109373835B - Electronic detonator control module structure - Google Patents
Electronic detonator control module structure Download PDFInfo
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- CN109373835B CN109373835B CN201811226320.3A CN201811226320A CN109373835B CN 109373835 B CN109373835 B CN 109373835B CN 201811226320 A CN201811226320 A CN 201811226320A CN 109373835 B CN109373835 B CN 109373835B
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- input terminal
- circuit board
- control module
- metal sleeve
- electronic detonator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/12—Primers; Detonators electric
Abstract
The invention discloses an electronic detonator control module structure. The invention designs a metal sleeve with a special structure, which provides good mechanical external force protection for the electronic detonator control module and the ignition explosive head and ensures that the metal sleeve is not damaged in the production turnover process. Particularly, the influence of strong shock waves generated in the blasting process on the whole electronic detonator control module can be avoided. The invention also places the electronic detonator ignition part, namely the bridging wire and the capacitor, on the same side of the electronic detonator circuit board, shortens the connecting lead between the two parts, saves the space of the circuit board, reduces the difficulty of the layout of the whole circuit board, avoids the influence of the current between the two connecting leads on other components, and improves the stability and the reliability of the whole electronic detonator control module.
Description
Technical Field
The invention relates to the technical field of initiating explosive devices, in particular to a control module structure of an electronic detonator.
Background
The continuous development and perfection of the electronic detonator technology, the technical superiority of the electronic detonator is more and more widely known in the global blasting world, particularly, the quality of parts used for producing the electronic detonator tends to be stable, the production scale is subjected to standardized management, the cost is continuously reduced, and the production application of the electronic detonator is expanded from the early rare and precious mineral exploitation field to common mines and quarries. The existing electronic detonator generally comprises a detonator sealing plug, an electronic control module and a detonator shell, wherein a detonator leg wire penetrates through the detonator sealing plug and is electrically connected with the electronic control module.
In the existing electronic detonator control module structure, an energy storage capacitor of a control module is placed at an input end of a leg wire, and an ignition element is arranged at one end of a circuit board, for example, the invention patent of China, namely a novel electronic detonator control module structure and a special production tool and a production method thereof, has the application number of CN201710141801.3, wherein the electronic detonator control module structure is disclosed, the middle part of a capacitor bracket is a capacitor supporting part, the front end of the capacitor supporting part is a terminal part of a connecting leg wire, the tail end of the capacitor supporting part is a welding disc, and the tail end of the welding disc is a connecting edge; the electronic detonator control module comprises an ignition explosive head, a circuit board capacitor bracket bonding pad and an energy storage capacitor pin bonding pad; a welding plate of the capacitor bracket is welded with a circuit board of the electronic detonator control module; the energy storage capacitor is arranged on the capacitor support of the capacitor bracket, and the pin of the energy storage capacitor is welded with the welding disc of the circuit board. By adopting the structure, the capacitors and the ignition elements are distributed at two ends of the circuit board, so that the connecting wires of the two parts penetrate through the whole circuit board, the space occupied by the circuit board is large, and the arrangement difficulty of other components on the circuit board is increased. In addition, the large current passing between the two wires can affect the main control chip and other electronic components on the electronic detonator control module, thereby reducing the reliability of the circuit board of the whole control module and bringing a great deal of influence to the stability of the electronic detonator control module in the working process.
Disclosure of Invention
The invention aims to solve the technical problem of providing a control module structure of an electronic detonator, which can save the space of a circuit board, has high safety and reliability and easy production and processing and overcomes the defects of the prior art.
The invention is realized by the following steps: a control module structure of an electronic detonator comprises a circuit board, a left foot line input terminal, a right foot line input terminal and a capacitor bracket, wherein the left foot line input terminal and the right foot line input terminal are respectively connected with one end of the circuit board through a left foot line pad and a right foot line pad; the energy storage capacitor is fixed on the capacitor bracket, and two pins of the energy storage capacitor are respectively connected with the left capacitor bonding pad and the right capacitor bonding pad; the other end of the capacitor support is provided with a left bridge wire crimping terminal and a right bridge wire crimping terminal, a bridge wire is connected between the left bridge wire crimping terminal and the right bridge wire crimping terminal, and the bridge wire and the energy storage capacitor are positioned on the same side of the circuit board; the outer part of the capacitor is provided with a plastic sealing layer, the plastic sealing layer wraps the circuit board, the capacitor bracket and the energy storage capacitor, a metal sleeve is sleeved outside the plastic sealing layer, and the outer wall of the metal sleeve is not conductive; the left leg wire input terminal and the right leg wire input terminal are exposed outside the plastic sealing layer and the metal sleeve, the left bridge wire crimping terminal, the right bridge wire crimping terminal and the bridge wire are exposed outside the plastic sealing layer, a one-way open cavity is formed between the tail end of the inner cavity of the metal sleeve and the tail end of the plastic sealing layer, and the left bridge wire crimping terminal, the right bridge wire crimping terminal and the bridge wire are located in the one-way open cavity but do not contact with the metal sleeve.
The left leg wire input terminal is provided with a contact piece which is contacted with the inner wall of the metal sleeve, and the inner wall of the metal sleeve is conductive. The contact piece is contacted with the inner wall of the metal sleeve, and the inner wall of the metal sleeve is conductive, so that the potential difference between each working element part on the control circuit board of the electronic detonator and the metal sleeve is reduced, and the safety and reliability of the whole circuit are ensured; in addition, when a large current or other strong interference electric signals enter the electronic detonator control module from the pin wire input end, the current can be guided to the metal sleeve through the contact piece to be released, so that the normal work of the electronic elements in the control module is ensured.
And the circuit board is provided with a semiconductor discharge tube which is connected with the left pin line input terminal and the right pin line input terminal in parallel. When strong electromagnetic or overvoltage interference signals are received on the pin wire input end without the contact piece, the semiconductor discharge tube is conducted, and the interference signals are guided to the metal sleeve through the contact piece on the other pin wire terminal to be released, so that the normal work of internal electronic elements is ensured.
The end surface of the metal sleeve close to one end of the left foot line input terminal and the end surface of one end of the right foot line input terminal are sawteeth. The sawteeth form a point discharge channel, and can release interference electromagnetic signals entering the electronic detonator control module.
The pipe wall of the one-way open cavity of the metal sleeve is inwardly closed. The structure forms a one-way open cavity with a reduced opening, the one-way open cavity and the plastic sealing layer form a medicament injection space, ignition medicament is injected into the one-way open cavity, and then drying and curing are carried out, so that the electronic detonator control module with the ignition powder head in a fixed shape can be obtained. In addition, when the ignition head is detonated in the use process, the unidirectional open cavity can enable the detonation energy of the ignition head to form concentrated jet flow towards the head direction, and the basic explosive in the electronic detonator basic tube shell can be reliably detonated.
The parts of the left foot line input terminal and the right foot line input terminal, which are not welded with the circuit board, are protruded outwards, and the outward protrusions enable the outer edges of the left foot line input terminal and the right foot line input terminal to be flush with the outer edge of the circuit board to the maximum extent, so that the spacing distance between the foot line input terminals is increased. Reduce the mutual interference of the input ends of the two leg wires and improve the stability of the whole electronic detonator control module
The non-conducting outer wall of the metal sleeve refers to that an insulating layer is arranged on the metal sleeve, and an insulating outer sleeve is wrapped outside the insulating layer. Such as heat shrink tubing, sponge layers; further ensuring the outer wall insulation performance of the metal sleeve and increasing the anti-impact performance of the whole electronic detonator
The inner diameter of the metal sleeve is matched with the outer diameter of the circuit board assembly covered with the plastic sealing layer. The electronic detonator control module after being sealed by the glue can be freely inserted into the metal sleeve without damaging the electronic detonator control module, and meanwhile, the electronic detonator control module is ensured not to move randomly in the metal sleeve.
The left foot line input terminal and the right foot line input terminal are of a long flat or U-shaped structure. So that the quick compression joint or welding mode can be adopted when the connecting device is connected with the leg wire. The whole electronic detonator control module is ensured to be coaxial with the electronic detonator sealing plug, so that the whole electronic detonator control module can be conveniently installed in a detonator base tube shell without rubbing with the shell wall of the base tube to damage internal electronic elements. And meanwhile, after the electronic detonator control module is installed in the detonator base tube shell, the ignition powder head is positioned on the axis of the detonator.
The electronic elements on the circuit board and the main control chip are packaged in a high-density mode to form a packaging body, and the packaging body is attached to the circuit board. The structure enables the integration level of the whole circuit board to be higher, mutual interference of all components is small, the layout of the circuit board is simple, and the reliability of the whole control module circuit is enhanced.
Due to the adoption of the technical scheme, the invention designs the metal sleeve with a special structure, and the metal sleeve provides good mechanical external force protection for the electronic detonator control module and the ignition explosive head, thereby ensuring that the metal sleeve is not damaged in the production turnover process. Particularly, the influence of strong shock waves generated in the blasting process on the whole electronic detonator control module can be avoided. The invention also places the electronic detonator ignition part, namely the bridging wire and the capacitor, on the same side of the electronic detonator circuit board, shortens the connecting lead between the two parts, saves the space of the circuit board, reduces the difficulty of the layout of the whole circuit board, avoids the influence of the current between the two connecting leads on other components, and improves the stability and the reliability of the whole electronic detonator control module. And the outer wall of the metal sleeve is not conductive, so that the electronic detonator control module is not conducted with the detonator shell after being installed in the detonator shell, and the networking communication of the electronic detonator is not influenced. The structure of the one-way open cavity designed on the metal sleeve is convenient for injecting ignition medicament into the cavity, and after the metal sleeve sleeves the bridge wire, the antistatic performance of the electronic detonator control module can be improved, and the safety and reliability of the electronic detonator are improved.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic plan view of the present invention;
FIG. 3 is a rear view of the present invention;
FIG. 4 is a schematic view of the structure of the left leg input terminal with a sub-contact piece according to the present invention;
FIG. 5 is a schematic view of a tape seal plastic layer structure of the present invention;
FIG. 6 is a schematic structural view of the metal-sheathed tube of the present invention;
FIG. 7 is a schematic view of a structure of a one-way open cavity formed after the metal sleeve is provided;
FIG. 8 is a cross-sectional view of the present invention with a metal sleeve;
FIG. 9 is a schematic view of a unidirectional open cavity formed after the metal sleeve is provided with the ignition agent injected therein;
fig. 10 is a schematic diagram of electrostatic discharge according to the present invention.
Detailed Description
The embodiment of the invention comprises the following steps: electronic detonator control module structure, including circuit board 1, left leg line input terminal 21, right leg line input terminal 22 and electric capacity support 3, its characterized in that: the left foot line input terminal 21 and the right foot line input terminal 22 are respectively connected with one end of the circuit board 1 through a left foot line pad 11 and a right foot line pad 12, the capacitor bracket 3 is connected with the other end of the circuit board 1 through a left bracket pad 13 and a right bracket pad 14, and a left capacitor pad 15 and a right capacitor pad 16 are arranged at the bottom of one end of the circuit board 1 connected with the capacitor bracket 3; the energy storage capacitor 4 is fixed on the capacitor bracket 3, and two pins of the energy storage capacitor 4 are respectively connected with the left capacitor bonding pad 15 and the right capacitor bonding pad 16; the other end of the capacitor bracket 3 is provided with a left bridging wire crimping terminal 31 and a right bridging wire crimping terminal 32, and a bridging wire 7 is connected between the left bridging wire crimping terminal 31 and the right bridging wire crimping terminal 32; the other end is a bonding pad structure; a plastic sealing layer 5 is arranged outside, the circuit board 1, the capacitor support 3 and the energy storage capacitor 4 are wrapped by the plastic sealing layer 5, a metal sleeve 6 is sleeved outside the plastic sealing layer 5, and the outer wall of the metal sleeve 6 is non-conductive; the left leg wire input terminal 21 and the right leg wire input terminal 22 are exposed outside the plastic sealing layer 5 and the metal sleeve 6, the left bridge wire crimping terminal 31, the right bridge wire crimping terminal 32 and the bridge wire 7 are exposed outside the plastic sealing layer 5, a one-way open cavity 61 is arranged on the metal sleeve 6, and the left bridge wire crimping terminal 31, the right bridge wire crimping terminal 32 and the bridge wire 7 are located in the one-way open cavity 61 but do not contact with the metal sleeve 6.
The left leg wire input terminal 21 is provided with a contact piece 23, and the contact piece 23 is in contact with the inner wall of the metal sleeve 6, so that the inner wall of the metal sleeve 6 is conductive.
The circuit board 1 is provided with a semiconductor discharge tube 8, and the semiconductor discharge tube 8 is connected in parallel to a left leg wire input terminal 21 and a right leg wire input terminal 22.
The end surface of the metal sleeve 6 near one end of the left leg wire input terminal 21 and the right leg wire input terminal 22 is a sawtooth 62.
The wall of the one-way open cavity 61 of the metal sleeve 6 is inwardly closed.
The parts of the left leg wire input terminal 21 and the right leg wire input terminal 22 except for the welding with the circuit board 3 are protruded outwards, and the outward protrusion is that the outer edges of the left leg wire input terminal 21 and the right leg wire input terminal 22 are flush with the outer edge of the circuit board 3 to the maximum extent so as to increase the spacing distance between the leg wire input terminals.
The non-conducting outer wall of the metal sleeve 6 means that an insulating layer is arranged on the metal sleeve 6, and an insulating outer sleeve is wrapped outside the insulating layer.
The inner diameter of the metal sleeve 6 is matched with the outer diameter of the circuit board assembly covered by the plastic sealing layer 5.
The left leg wire input terminal 21 and the right leg wire input terminal 22 are in a long flat or U-shaped structure.
The electronic elements and the main control chip on the circuit board 1 are packaged in high density to form a package body 9, and the package body 9 is attached to the circuit board 1.
The invention is not limited to the embodiments described in the specific embodiments, and those skilled in the art can derive other embodiments according to the technical solutions of the invention, and the embodiments also belong to the technical innovation scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The utility model provides an electron detonator control module structure, includes circuit board (1), left foot line input terminal (21), right foot line input terminal (22) and electric capacity support (3), its characterized in that: the left foot line input terminal (21) and the right foot line input terminal (22) are respectively connected with one end of the circuit board (1) through a left foot line pad (11) and a right foot line pad (12), the capacitor bracket (3) is connected with the other end of the circuit board (1) through a left bracket pad (13) and a right bracket pad (14), and a left capacitor pad (15) and a right capacitor pad (16) are arranged at the bottom of one end of the circuit board (1) connected with the capacitor bracket (3); the energy storage capacitor (4) is fixed on the capacitor bracket (3), and two pins of the energy storage capacitor (4) are respectively connected with the left capacitor bonding pad (15) and the right capacitor bonding pad (16); the other end of the capacitor bracket (3) is provided with a left bridging wire crimping terminal (31) and a right bridging wire crimping terminal (32), and a bridging wire (7) is connected between the left bridging wire crimping terminal (31) and the right bridging wire crimping terminal (32); a plastic sealing layer (5) is arranged outside the circuit board, the circuit board (1), the capacitor support (3) and the energy storage capacitor (4) are wrapped by the plastic sealing layer (5), a metal sleeve (6) is sleeved outside the plastic sealing layer (5), and the outer wall of the metal sleeve (6) is non-conductive; the left foot line input terminal (21) and the right foot line input terminal (22) are exposed outside the plastic sealing layer (5) and the metal sleeve (6), the left bridge wire crimping terminal (31), the right bridge wire crimping terminal (32) and the bridge wire (7) are exposed outside the plastic sealing layer (5), a one-way open cavity (61) is formed between the tail end of an inner cavity of the metal sleeve (6) and the tail end of the plastic sealing layer (5), and the left bridge wire crimping terminal (31), the right bridge wire crimping terminal (32) and the bridge wire (7) are located in the one-way open cavity (61) but do not contact with the metal sleeve (6).
2. The electronic detonator control module structure of claim 1 wherein: a contact piece (23) is arranged on the left leg wire input terminal (21), the contact piece (23) is contacted with the inner wall of the metal sleeve (6), and the inner wall of the metal sleeve (6) is conductive.
3. The electronic detonator control module structure of claim 2 wherein: the circuit board (1) is provided with a semiconductor discharge tube (8), and the semiconductor discharge tube (8) is connected with the left foot line input terminal (21) and the right foot line input terminal (22) in parallel.
4. The electronic detonator control module structure of claim 1 wherein: the end surface of the metal sleeve (6) close to one end of the left leg wire input terminal (21) and the right leg wire input terminal (22) is provided with sawteeth (62).
5. The electronic detonator control module structure of claim 1 wherein: the pipe wall of the one-way open cavity (61) of the metal sleeve (6) is inwardly closed.
6. The electronic detonator control module structure of claim 1 wherein: the parts of the left foot line input terminal (21) and the right foot line input terminal (22) except for welding with the circuit board (1) are outwards protruded, and the outwards protruded parts are that the outer edges of the left foot line input terminal (21) and the right foot line input terminal (22) are flush with the outer edge of the circuit board (1) to the maximum extent so as to increase the distance between the foot line input terminals.
7. The electronic detonator control module structure of claim 1 wherein: the outer wall of the metal sleeve (6) is non-conductive, namely an insulating layer is arranged on the metal sleeve (6), and an insulating outer sleeve is wrapped outside the insulating layer.
8. The electronic detonator control module structure of claim 1 wherein: the inner diameter of the metal sleeve (6) is matched with the outer diameter of the circuit board assembly covered with the plastic sealing layer (5).
9. The electronic detonator control module structure of claim 1 wherein: the left foot line input terminal (21) and the right foot line input terminal (22) are in a long flat or U-shaped structure.
10. The electronic detonator control module structure of claim 1 wherein: the electronic elements and the main control chip on the circuit board (1) are packaged in a high-density mode to form a packaging body (9), and the packaging body (9) is attached to the circuit board (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811226320.3A CN109373835B (en) | 2018-10-19 | 2018-10-19 | Electronic detonator control module structure |
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| CN201811226320.3A CN109373835B (en) | 2018-10-19 | 2018-10-19 | Electronic detonator control module structure |
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| CN109373835A CN109373835A (en) | 2019-02-22 |
| CN109373835B true CN109373835B (en) | 2021-04-06 |
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| US20220258103A1 (en) | 2013-07-18 | 2022-08-18 | DynaEnergetics Europe GmbH | Detonator positioning device |
| US11661824B2 (en) | 2018-05-31 | 2023-05-30 | DynaEnergetics Europe GmbH | Autonomous perforating drone |
| CN110440646A (en) * | 2019-08-12 | 2019-11-12 | 中铁广州工程局集团有限公司 | A kind of protective device and production method of jacket-type electric detonator |
| CN113074597A (en) * | 2020-01-06 | 2021-07-06 | 杭州晋旗电子科技有限公司 | Electronic detonator with anti-interference structural design |
| CN111322915A (en) * | 2020-03-12 | 2020-06-23 | 融硅思创(北京)科技有限公司 | Energy storage and discharge module for digital electronic detonator |
| CN111750746A (en) * | 2020-06-12 | 2020-10-09 | 贵州久联民爆器材发展股份有限公司九八四四生产分公司 | Method and structure for improving transportation and ignition capability of ignition element of electronic detonator |
| CN112129181A (en) * | 2020-08-18 | 2020-12-25 | 重庆云铭科技股份有限公司 | Electronic control module of electronic detonator and production process method thereof |
| CN115420155A (en) * | 2022-08-18 | 2022-12-02 | 深圳寅辰科技有限公司 | Integrated electronic digital detonator module adopting SIP packaging |
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| CA1332960C (en) * | 1988-09-29 | 1994-11-08 | Kenichi Aiko | Electronic delayed detonator |
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